	/* div{
			border: 1px solid hotpink;
		} */
		#a{
			border: 1px solid greenyellow;
		}
		#b{
			border: 1px solid greenyellow;
		}
		#c{
			border: 1px solid greenyellow;
		}
		.a_1 img{
			height: 100%;
		}
		.a_1{
			height: 70px;
		}
		.b_1 img{
			height: 100%;
		}
		.b_1{
			height: 450px;
		}
		.bt{
			width: 100px;
			height: 30px;
			border: crimson; 
			color: white;
			background-color: red;
		}
		.bt:hover{
			background-color: black;
		}
		.b_2{
			float: left;
			margin-left: 100px;
			margin-top: 70px;
		}
		.b_2_1{
			margin-left: 32px;
			margin-top: -15px;
		}
		.b_2_2{
			margin-left: 35px;
			margin-top: 15px;
		}
		.b_2_3{
			margin-left: 35px;
			margin-top: 10px;
		}
		.png img{
			width: 100%;
			height: 100%;
		}
		.png{
			width: 200px;
			height: 50px;
		}
		#c_1{
			margin-top: 7px;
		}
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	